Rolls for rolling girder-rails



4 Sheets-Sheen; 1.

(No Model.)

A. J. MOXHAM.

ROLLS FOR ROLLING GIRDER RAILS.

No. 378,210. Patented Feb. 21, 1888.

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(No Model.) I 4 Sheets-Sheet 2.

A. J. MOXHAM.

ROLLS FOR ROLLING GIBDER RAILS.

No. 378,210. Patented Feb. 21, 1888.

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A. J. MOXHAM.

ROLLS FOR ROLLING GIRDER RAILS.

No. 378,210. Patented Feb. 21, 1888.

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ROLLS FOR ROLLING GIRDER RAILS. 7 No. 378,210. Patented Feb. 21, 1888.

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ARTHUR J. MOXHAM, OF JOHNSTOWVN, PENNSYLVANIA.

ROLLS FOR ROLLING GIRDER -RAILS.

SPECIFICATION forming part of Letters Patent No. 378,210, dated February21, 1888.

Application filed December 19, 1887. Serial No. 258,286. (No model.)

To all whom it may concern.-

Be it known that I, ARTHUR J. IVIOXHAM, of Johnstown, in the county ofOambria and State of Pennsylvania, have invented new and useful Rollsfor the Rolling of Two Finished Forms of Gircler-Rails, which inventionis fully set forth and illustrated in thefollowing specification andaccompanying drawings.

The object of this invention is to roll two forms of girder-rail, eachform finished for use, the one finished form to be converted into the.other when required.

The invention will first be described in de tail, and then particularlyset forth in the claims.

In the accompanying drawings, Figure 1 illustrates in front elevation aset of roughing-rolls containing one flattening-pass, one edging-pass,and one dummy pass, in the order named, commencing at the ,left of thefigure. Fig. 2 illustrates, also in front elevation, an other set ofroughing-rolls, whose first two passes from the left are edging-passesand whose remaining pass is a dummy pass. Fig. 3 illustrates, also infront elevation, a set of finishing-rolls all of whose passes, save thefinal pass on the right of the figure, are edging-passes, said finalpass being a flange or tram-curving pass, which may or may not be used,as occasion requires. Fig. 4 illustrates in end elevation a rail of theform as finished in the last pass but one of Fig. 3. Fig. 5 illustratesthe same rail when the side flange of its head has been upturned afterbeing put through the last pass in Fig. 3.

In said'figures the upper rolls are respectively indicated by the letterA and the lower rolls by the letter B, and the passes between the rollsare indicated by numbers from 1 to 12, inclusive. Pass No. l is aflattening-pass, pass No. 2 an edging pass, and pass No. 3 a dummy pass.Passes 4t and 5 are edging passes, and pass No. 6 is a dummy pass.Passes 7, S, 9, l0, and 11 are edging-passes, and pass 12 a flange ortram-curving pass, which latter pass may or may not be used, ashereinbefore stated, its purpose being to bend up the flange f of therail previously rolled in pass No. 11. It will be observed that in theabove-named dummy passes the bottoms or lower parts of said passes,instead of being made flat, are beveled or offset on one side, as shownat the points 11. By thus shaping said dummy passes the use of the dummypasses can be extended beyond the point at which the offset for the headportion is rolled in, and it so aids in the rolling by hastening theoperation of reducing the metal to the desired finished form.

It will be observed that there are these dif ferences between theinvention described in my application Serial No. 258,285, herewithfiled, and the invention herein described: In said application a blankis rolled from which two forms of rail can be subsequently rolled fromsaid same blank by special mechanism; but by the invention hereindescribed the finished rail is rolled ready for use in the form as itleaves pass No. 11, and can then be either used in such form or putthrough pass No. 12, which turns up its flangef, changing its shape fromthat shown in Fig. 4 to that shown in Fig. 5, as already explained, andthe rolls are essentially different in the shape and form of the dummypass.

I do not limit myself to the exact number or distribution of passesshown, as the number of passes and their distribution into roughing andfinishing passes is to a certain extent arbitrary, being influenced bythe length and diameter of the rolls, a light train of rolls calling formore passes with lighter draft than a heavy roll-train. It is alsoevident that the rolls can, if desired, be made threehigh, instead oftwo-high, as shown.

Having thus fully described my said improvement as of my invention, Iclaim 1. Rolls for rolling girder-rails, provided with one or more dummypasses havinga bottom offset, as at p, substantially as and for thepurposes set forth.

2. Rolls for rolling girder-rails, provided with passes substantially ofthe shape or form shown in the accompanying drawings, and

numbered from 1 to 12, inclusive, as and for the purposes set forth.

ARTHUR J. MOXHAM. Witnesses:

G. R. POWELL, G. M. JOHNSON.

